Fault code index · medium
P0647
A/C Compressor clutch relay drive circuit high voltage / A/C (compressor clutch request on [CAN])
A/C Compressor clutch relay drive circuit high voltage / A/C (compressor clutch request on [CAN])
Documented for: 2.0L gasoline; 2.5L/3.0L gasoline · System(s): EMS EOBD, EMS OBD II · Factory MIL flag: 2
Common causes
- A/C Compressor clutch relay drive circuit: short circuit to high voltage A/C Compressor clutch relay failure
Quick checks
- Confirm freeze-frame and conditions when the code set
- Inspect connectors, grounds, and harness for the circuit named in the code